Step 1: Analyze the direct speech. The sentence “Please help me in trouble.” is an imperative sentence, specifically a request, indicated by the word "Please".
Step 2: Change the reporting verb. For requests, the reporting verb 'said' should be changed to a more appropriate verb like 'requested' or 'asked'.
Step 3: Convert the verb and remove "Please". The imperative verb 'help' is changed to its infinitive form 'to help'. The word "Please" is removed because its meaning is incorporated into the reporting verb 'requested' or 'asked'.
Step 4: Change the pronoun. The first-person pronoun 'me' changes to the third-person pronoun 'him', referring to Tarun.
Step 5: Construct the final sentence. Combining these changes gives: "Tarun asked me to help him in trouble" or "Tarun requested me to help him in trouble." Option (C) is a correct and standard conversion.